Boat hull



FIG. 1 is a bottom right perspective view of a boat hull;

FIG. 2 is a right side view taken from FIG. 1, the left side view being the same;

FIG. 3 is a bottom view taken from FIG. 1;

FIG. 4 is a front view taken from FIG. 1; and,

FIG. 5 is a top view taken from FIG. 1.

The broken lines which define the bounds of the claimed design form no part thereof. 

The ornamental design for a boat hull, as shown and described. 